3-14 Keysight B1505A Configuration and Connection Guide
N1265A Connection Guide
Output Connection
NOTE Controlling selector input-to-output path
The configuration and the default I/O path of the selector are set by using the UHC
Expander/Fixture tab screen of the Configuration window of the EasyEXPERT software.
The connection path from the input port to the output port is controlled by each test setup.
And the selector switching status is indicated by the status indicator mounted on the front
panel. See Figure 3-5 and Table 3-7 for the indication and the connection path.
Figure 3-5 Built-in Selector Simplified Internal Connections
Table 3-7 Built-in Selector Status Indicator and Input-to-Output Connection Path
NOTE Selector may emit a noise sound during operation. However it is not abnormal status.
Measurement resource
used for the test
Status
indicator
Input-to-output connection
1
of output terminals
1. In the normal state, the selector makes the path to the output port from the input port specified by the
Default field. When a measurement is performed, the selector performs automatic switching in every
test. The selector makes the path to the output port from the measurement resource used for the test.
Low Sense Low Force High Sense High Force
2
2. This condition is when the Default field is blank.
(off) Open Open Open Open
GNDU GNDU Sense GNDU Force Open Open
HPSMU or MPSMU SMU GNDU Sense GNDU Force SMU Sense SMU Force
UHCU UHC UHCU
Low Sense
UHCU
Low Force
UHCU
High Sense
UHCU
High Force
HVSMU or HVMCU
HVSMU
GNDU Sense GNDU Force HVSMU Force Open
HVSMU/HVMCU and
built-in series resistor
GNDU Sense GNDU Force HVSMU Force
+ Series resistor
Open
Low High
Sense Force
S: Sense
F: Force
P.A
GNDU
UHCU
SMU HVSMU
SF
SF
SF
F
P.A: Protection adapter
Sense Force
HVSMU force is
connected to
High sense line.
MCSMU MCSMU
I-controlV-control
MCSMU
FS
Low High
Gate
100 kΩ
0 Ω
10 Ω
100 Ω
or 1 kΩ
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